What is one factor contributing to firefighter wellness according to the text?

Nutrition is a critical factor contributing to firefighter wellness because it directly impacts physical health, energy levels, and overall performance in challenging and physically demanding environments. A balanced diet helps maintain optimal body weight, enhances endurance, and supports recovery after strenuous activities, which are essential for firefighters who face intense physical exertion during emergencies. Additionally, proper nutrition can strengthen immunity, reduce the risk of chronic diseases, and improve mental health— all vital for firefighters who must perform their duties effectively while managing stress.

In the context of firefighter wellness, while the other options may contribute to overall well-being in different ways, nutrition specifically addresses the physiological needs that impact performance and health in the fire service. This focus on nutrition helps ensure that firefighters are physically fit to handle the rigors of their job, which is paramount for their safety and that of their colleagues and the communities they serve.